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I have dual booted my desktop. It has Windows 8.1 and Xubuntu 16.04.3 LTS. When I select Xubuntu from GRUB menu, it takes to long to boot into Xubuntu. The screen stays like this for a long time.

Xubuntu boot screen

On presssing Escape from the keyboard, I observe a blank black screen.

After some time, Xubuntu finally boots up.

I have tried using Boot-Repair and also followed Really slow boot on 16.04 but nothing helped.

Boot summary is available here: http://paste.ubuntu.com/26034596/

Output of systemd-analyze critical-chain:

The time after the unit is active or started is printed after the "@" character.
The time the unit takes to start is printed after the "+" character.

graphical.target @1min 41.822s
└─multi-user.target @1min 41.822s
  └─ntp.service @1min 41.780s +41ms
    └─network-online.target @1min 41.778s
      └─NetworkManager-wait-online.service @1min 34.529s +7.248s
        └─NetworkManager.service @1min 32.030s +2.444s
          └─dbus.service @1min 31.962s
            └─basic.target @1min 31.960s
              └─sockets.target @1min 31.960s
                └─snapd.socket @1min 31.936s +23ms
                  └─sysinit.target @1min 31.936s
                    └─apparmor.service @15.229s +941ms
                      └─local-fs.target @15.227s
                        └─run-user-1000-gvfs.mount @1min 58.217s
                          └─run-user-1000.mount @1min 57.032s
                            └─local-fs-pre.target @15.225s
                              └─systemd-remount-fs.service @15.161s +63ms
                                └─system.slice @1.714s
                                  └─-.slice @1.627s
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  • Please show the result of: systemd-analyze critical-chain
    – user680858
    Nov 24, 2017 at 14:49
  • 1
    when you boot. highlight ubuntu and press "e" to edit. change "quiet splash" to "nosplash" then pres F10 to boot. I suspect that it is waiting for a drive to mount
    – ravery
    Nov 24, 2017 at 14:53
  • @WillemK where should i post output of the command. Should I answer my question or make an edit?
    – pandafy
    Nov 24, 2017 at 15:14
  • You can see the result [here] (pastebin.com/ex0C5pf5)
    – pandafy
    Nov 24, 2017 at 15:21
  • I support Ravery's suspicion that some drive cannot be mounted. Now please show us the results of: ls -l /dev/disk/by-uuid and cat /etc/fstab.
    – user680858
    Nov 24, 2017 at 15:27

1 Answer 1

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According to Boot summary:
Your sda7 (swap) has : UUID:ef66677d-b68d-44bd-88bd-6b32f30eb1cb.
Your /etc/fstab has: UUID=b66d26d9-8ef1-4192-ac02-02ac6c52b4f9.
You need to change /etc/fstab to use the first UUID.

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  • This has drastically reduced boot time. but now I don't see that Xubuntu logo and that loading symbol, just a blank screen for about 10 seconds and then it jumps to login screen. Well this works for me, but I would prefer that Xubuntu image instead of blank screen.
    – pandafy
    Nov 24, 2017 at 17:20
  • Look at the answer given previously by Ravery about "nosplash". Alter that to "quiet splash". That Xubuntu image is the 'splash' screen.
    – user680858
    Nov 24, 2017 at 17:36
  • I checked for that and it was back to 'quiet splash'. Is that usual. i think there is an option to edit that through GRUB configuration file.
    – pandafy
    Nov 24, 2017 at 17:42
  • I found this under $gksu gedit /etc/default/grub GRUB_DEFAULT=0 #GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=10 GRUB_DISTRIBUTOR=lsb_release -i -s 2> /dev/null || echo Debian GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" GRUB_CMDLINE_LINUX=""
    – pandafy
    Nov 24, 2017 at 17:44

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